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Heart|Lab Grown|IGI

1.01ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG829610592

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG829610592

Diamond specifications and retailer prices

From £120 GBP
As of November 6, 2026
Save £313 GBP (72%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £631 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG829610592 or 829610592. Listed at 17 retailers as of November 6, 2026, with a 260% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle43.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG829610592
Dimensions6.71 × 6.59 × 3.78 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm6.59 mm1.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG829610592
Side View
Table 66.0%Crown 35.5°Girdle: STK-THKPavilion 43.3°Culet: NoneDepth 57.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £631 GBP|Low: £120 GBP|High: £665 GBP|Avg: £316 GBP|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8£120 GBP
Retailer 3£152 GBP
Retailer 6£172 GBP
Retailer 4£224 GBP
Retailer 2£227 GBP
Retailer 7£227 GBP
Retailer 10£247 GBP
Retailer 9£253 GBP
Retailer 5£336 GBP
Retailer 11£344 GBP
Retailer 13£369 GBP
Retailer 12£433 GBP
MOH London£631 GBP

39 data points across 13 retailers

17 retailers£120 GBP to £433 GBP

Retailer 1
-
£108 GBP
Price last confirmed 20 days ago
A
Retailer 2
-
£120 GBP
View
Final sale: no returns
Retailer 3
-
£126 GBP
View
Price last confirmed 22 days ago
Retailer 4
-
£134 GBP
View
Price last confirmed 22 days ago
A
Retailer 5
-
£152 GBP
View
A
Retailer 6
-
£172 GBP
View
B+
Retailer 7
-
£224 GBP
View
B+
Retailer 8
-
£227 GBP
View
B+
Retailer 9
-
£227 GBP
View
B+
Retailer 10
-
£247 GBP
View
B+
Retailer 11
-
£253 GBP
View
Retailer 12
-
£336 GBP
View
Price last confirmed 9 days ago
B
Retailer 13
-
£344 GBP
View
B
Retailer 14
-
£369 GBP
View
B
Retailer 15
-
£433 GBP
View
Retailer 16
-
£433 GBP
View
Price last confirmed 21 days ago
Most Expensive
MOH London
LG829610592 · Oct 26
£631 GBP
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from £120 GBPSave up to £313 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.01ct Heart
£120 GBP